Which aleph for the bass and mids?

Selfmade · 29th November 2002, 06:22 PM

Which aleph amp is the best choise in a bi-amping system for bass and mids? Frequency range (40 - 1000 Hz); Output power/ch about 60-80 watts.

I think a good choise could be the aleph 5, but it has an damping factor of only 50.
The aleph 60 has a damping faktor of 100 and so more control for the bass.

Or an alephX? output power? damping faktor?

regards

Günter

Nelson Pass · 29th November 2002, 06:32 PM

The bigger the Aleph, the better the bottom.

Also, I wouldn't go by damping factor if I were you. I have
too many examples of high vs low DF examples where the
low had better control of the bass. Go figure.

Duck-Twacy · 30th November 2002, 09:13 PM

A friend (an engineer in electronics) used PSpice to analyse the Aleph5 design. According to his calculations the damping factor is
at 8Ohm load:
100Hz: 266
1000Hz: 266
10000Hz: 140
20000Hz: 80

xcel · 30th November 2002, 10:40 PM

Quote:

The bigger the Aleph, the better the bottom

What are the arguments for this compelling statement, Nelson ? Is it the amount of available output current, or output resistance....Please elaborate.

Greetings,

Xcel

djk · 30th November 2002, 11:26 PM

Damping factor is a virtually meaningless specification as regards bass quality.

If an amplifier has an output impedance of 0R05 it is said to have a DF of 160.

So what?

A typical 8R speaker will have a DCR of 5R, and the inductor in series with the woofer will add another 0R5, for a total of 5R55 (adding amplifier output impedance but neglecting any connecting wire).

If the amplifier had a DF of infinity the motional (generator) voltage of the speaker would still have 5R5 in series with it. And still 5R if bi-amped.

I own a transformer coupled amplifier with a DF of 14. It is much 'tighter' in the bass with much more 'slam' than amplifiers with DF in the range of 400 and UP.

galouche · 22nd July 2008, 06:25 PM

Hello

Could you give me the damping factor of the AlephX ?

thanks in advance

29th November 2002, 06:22 PM	#1
Selfmade diyAudio Member Join Date: Feb 2002 Location: Flensburg	Which aleph for the bass and mids? Which aleph amp is the best choise in a bi-amping system for bass and mids? Frequency range (40 - 1000 Hz); Output power/ch about 60-80 watts. I think a good choise could be the aleph 5, but it has an damping factor of only 50. The aleph 60 has a damping faktor of 100 and so more control for the bass. Or an alephX? output power? damping faktor? regards Günter

30th November 2002, 09:13 PM	#3
Duck-Twacy diyAudio Member Join Date: Oct 2002 Location: Holland, The Hague	A friend (an engineer in electronics) used PSpice to analyse the Aleph5 design. According to his calculations the damping factor is at 8Ohm load: 100Hz: 266 1000Hz: 266 10000Hz: 140 20000Hz: 80 __________________ Is that all there is?

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Recomnbed woofers/Mids for punchy yet deep bass?	xenu	Multi-Way	14	21st April 2009 02:32 AM
Seas Excel mids vs. dayton rs mids in dipole	sqlkev	Multi-Way	2	10th July 2006 06:28 PM
full range for the mids and high, bass unit for the low?	swin1	Full Range	12	20th May 2006 12:48 PM
Mids/Bass driver for TDL	Fossil	Multi-Way	2	14th February 2006 11:45 AM
Bass interference with mids	fr0st	Multi-Way	12	16th January 2003 09:36 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

29th November 2002, 06:32 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	The bigger the Aleph, the better the bottom. Also, I wouldn't go by damping factor if I were you. I have too many examples of high vs low DF examples where the low had better control of the bass. Go figure.

30th November 2002, 11:26 PM	#5
djk diyAudio Member Join Date: Feb 2001 Location: USA	Damping factor is a virtually meaningless specification as regards bass quality. If an amplifier has an output impedance of 0R05 it is said to have a DF of 160. So what? A typical 8R speaker will have a DCR of 5R, and the inductor in series with the woofer will add another 0R5, for a total of 5R55 (adding amplifier output impedance but neglecting any connecting wire). If the amplifier had a DF of infinity the motional (generator) voltage of the speaker would still have 5R5 in series with it. And still 5R if bi-amped. I own a transformer coupled amplifier with a DF of 14. It is much 'tighter' in the bass with much more 'slam' than amplifiers with DF in the range of 400 and UP.

22nd July 2008, 06:25 PM	#6
galouche diyAudio Member Join Date: Oct 2006	Hello Could you give me the damping factor of the AlephX ? thanks in advance